From c04d2c62f2fd8df2344a9981f6f90a4db524e382 Mon Sep 17 00:00:00 2001
From: Ian Jauslin <ian@jauslin.org>
Date: Fri, 15 Oct 2021 19:36:29 -0400
Subject: [PATCH] Parse command

---
 command_prompt.py | 46 ++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 44 insertions(+), 2 deletions(-)

diff --git a/command_prompt.py b/command_prompt.py
index 135cade..f048e21 100644
--- a/command_prompt.py
+++ b/command_prompt.py
@@ -18,6 +18,9 @@ class Command_prompt(Label):
         # the text, with no color information
         self.raw_text=""
 
+        # array of command with arguments
+        self.argv=[]
+
         # init Label
         super(Command_prompt,self).__init__(**kwargs)
 
@@ -42,10 +45,11 @@ class Command_prompt(Label):
             self.text=self.raw_text
 
     def on_key_down(self, keyboard, keycode, text, modifiers):
-        print(keycode,text,modifiers)
+        #print(keycode,text,modifiers)
         if self.insert:
             if keycode[1]=="enter":
                 self.insert=False
+                self.parse_command()
                 self.set_text("")
             elif keycode[1]=="left":
                 self.move_cursor_relative(-1)
@@ -57,7 +61,7 @@ class Command_prompt(Label):
                 self.move_cursor(len(self.raw_text))
 
     def on_textinput(self,window,text):
-        print(text)
+        #print(text)
         if self.insert:
             self.append_text_at_cursor(text)
         elif text==':':
@@ -90,3 +94,41 @@ class Command_prompt(Label):
     def move_cursor(self,n):
         self.cursor=max(1,min(len(self.raw_text),n))
         self.draw()
+
+    # parse text as argv
+    def parse_command(self):
+        # init
+        self.argv=[""]
+
+        # whether inside quotes
+        single_quoted=False
+        double_quoted=False
+        # whether after '\'
+        backslashed=False
+
+        # start after ':'
+        # proceed one character at a time
+        for i in range(1,len(self.raw_text)):
+            char=self.raw_text[i]
+
+            # split argument
+            if single_quoted==False and double_quoted==False and backslashed==False and char==' ':
+                # new argv
+                self.argv.append("")
+            
+            # quotes or '\'
+            elif double_quoted==False and backslashed==False and char=='\'':
+                single_quoted=not single_quoted
+            elif single_quoted==False and backslashed==False and char=='"':
+                double_quoted=not double_quoted
+            elif single_quoted==False and backslashed==False and char=='\\':
+                backslashed=True
+
+            # write character
+            else:
+                self.argv[len(self.argv)-1]+=char
+                # reset backslash
+                backslashed=False
+
+
+